<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/77299>77299</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [options] option -funit-at-a-time and option -fno-unit-at-a-time not found in llvm15
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          W-50243
      </td>
    </tr>
</table>

<pre>
    When I switched from gcc to llvm, I found that the options -funit-at-a-time and -fno-unit-at-a-time were not supported on llvm. Check the documents before llvm and find that this option is available in llvm14 and earlier versions. Did llvm make any changes to remove this option? Are there any alternatives?
</pre>
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